<?php // $Id: index.php,v 1.46.2.12 2009/01/14 07:03:11 tjhunt Exp $
/**
 * This page lists all the instances of quiz in a particular course
 *
 * @author Martin Dougiamas and many others.
 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
 * @package quiz
 */
	require_once("../../config.php");
	require_once("locallib.php");

	$id = required_param('id', PARAM_INT);
	if (!$course = get_record("course", "id", $id)) {
		error("Course ID is incorrect");
	}
	$coursecontext = get_context_instance(CONTEXT_COURSE, $id);
	require_login($course->id);
	add_to_log($course->id, "quiz", "view all", "index.php?id=$course->id", "");

// Print the header
	$strquizzes = get_string("modulenameplural", "quiz");
	$streditquestions = '';
	$editqcontexts = new question_edit_contexts($coursecontext);
	if ($editqcontexts->have_one_edit_tab_cap('questions')) {
		$streditquestions =
				"<form target=\"_parent\" method=\"get\" action=\"$CFG->wwwroot/question/edit.php\">
				   <div>
				   <input type=\"hidden\" name=\"courseid\" value=\"$course->id\" />
				   <input type=\"submit\" value=\"".get_string("editquestions", "quiz")."\" />
				   </div>
				 </form>";
	}
	$navlinks = array();
	$navlinks[] = array('name' => $strquizzes, 'link' => '', 'type' => 'activity');
	$navigation = build_navigation($navlinks);

	print_header_simple($strquizzes, '', $navigation,
				 '', '', true, $streditquestions, navmenu($course));

// Get all the appropriate data
	if (!$quizzes = get_all_instances_in_course("quiz", $course)) {
		notice(get_string('thereareno', 'moodle', $strquizzes), "../../course/view.php?id=$course->id");
		die;
	}

// Configure table for displaying the list of instances.
	$headings = array(get_string('name'), get_string('quizcloses', 'quiz'));
	$align = array('left', 'left');
	if ($course->format == 'weeks' or $course->format == 'weekscss') {
		array_unshift($headings, get_string('week'));
	} else {
		array_unshift($headings, get_string('section'));
	}
	array_unshift($align, 'center');

	$showing = '';  // default

	if (has_capability('mod/quiz:viewreports', $coursecontext)) {
		array_push($headings, get_string('attempts', 'quiz'));
		array_push($align, 'left');
		$showing = 'stats';
	} else if (has_any_capability(array('mod/quiz:reviewmyattempts', 'mod/quiz:attempt'), $coursecontext)) {
		array_push($headings, get_string('bestgrade', 'quiz'), get_string('feedback', 'quiz'));
		array_push($align, 'left', 'left');
		$showing = 'scores';  // default
	}

	$table->head = $headings;
	$table->align = $align;

/// Populate the table with the list of instances.
	$currentsection = '';
	foreach ($quizzes as $quiz) {
		$cm = get_coursemodule_from_instance('quiz', $quiz->id);
		$context = get_context_instance(CONTEXT_MODULE, $cm->id);
		$data = array();

		// Section number if necessary.
		$strsection = '';
		if ($quiz->section != $currentsection) {
			if ($quiz->section) {
				$strsection = $quiz->section;
			}
			if ($currentsection) {
				$learningtable->data[] = 'hr';
			}
			$currentsection = $quiz->section;
		}
		$data[] = $strsection;

		// Link to the instance.
		$class = '';
		if (!$quiz->visible) {
			$class = ' class="dimmed"';
		}
		$data[] = "<a$class href=\"view.php?id=$quiz->coursemodule\">" . format_string($quiz->name, true) . '</a>';

		// Close date.
		if ($quiz->timeclose) {
			$data[] = userdate($quiz->timeclose);
		} else {
			$data[] = '';
		}

		if ($showing == 'stats') {
			// The $quiz objects returned by get_all_instances_in_course have the necessary $cm
			// fields set to make the following call work.
			$attemptcount = quiz_num_attempt_summary($quiz, $quiz);
			if ($attemptcount) {
				$data[] = "<a$class href=\"report.php?id=$quiz->coursemodule\">$attemptcount</a>";
			} else {
				$data[] = '';
			}
		} else if ($showing == 'scores') {

			// Grade and feedback.
			$bestgrade = quiz_get_best_grade($quiz, $USER->id);
			$attempts = quiz_get_user_attempts($quiz->id, $USER->id, 'all');
			list($someoptions, $alloptions) = quiz_get_combined_reviewoptions($quiz, $attempts, $context);

			$grade = '';
			$feedback = '';
			if ($quiz->grade && !is_null($bestgrade)) {
				if ($alloptions->scores) {
					$grade = "$bestgrade / $quiz->grade";
				}
				if ($alloptions->overallfeedback) {
					$feedback = quiz_feedback_for_grade($bestgrade, $quiz->id);
				}
			}
			$data[] = $grade;
			$data[] = $feedback;
		}

		$table->data[] = $data;
	} // End of loop over quiz instances.

// Display the table.
	echo '<br />';
	print_table($table);

// Finish the page
	print_footer($course);
?>
